1) Take The Druid Path self-study course.
You can get a copy at HERE.
2) Read Stranger In A Strange Land by Robert A. Heinlein
(it’s available in pdf on the disk and the download).
3) Acquire a Seren Derwydd pendant for your initiation ritual into 2nd Degree.
4) Arrange for an initiation ritual, either with your AD or over the phone or in chat with a 3rd Degree.
(Note: If you are a member of a Grove, your seren derwyddd will be gifted to you).